//
//  HMVisitorView.swift
//  新浪微博-4-8v1.0
//
//  Created by 黎永锋 on 16/4/9.
//  Copyright © 2016年 黎永锋. All rights reserved.
//

import UIKit

//1.定义代理协议
protocol HMVisitorViewDelegate: NSObjectProtocol {

    // 2.定义代理方法
    func visitorViewDidClickRegisterButton(visitorView visitorView: UIView)
    
    func visitorViewDidClickLoginButton(visitorView visitorView: UIView)
}

class HMVisitorView: UIView {
    
    //3.定义代理属性
    weak var delegate: HMVisitorViewDelegate?

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        prepareUI()
        
        //设置背景颜色
//        backgroundColor = UIColor(red: 237 / 255.0, green: 237 / 255.0, blue: 237 / 255.0, alpha: 1)
        
        backgroundColor = UIColor(white: 237 / 255.0, alpha: 1)
    }

    // MARK: -公开方法
    // 转轮动画
    func startRotation(){
    
        //使用核心动画
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        anim.toValue = M_PI * 2
        anim.repeatCount = MAXFLOAT
        anim.duration = 20
        
        //动画完成不要移除动画
        anim.removedOnCompletion = false
        
        iconView.layer.addAnimation(anim, forKey: nil)
    }
    

    /**
    设置访客视图内容
    
    - parameter imageName: 图片名称
    - parameter message:   消息
    */
    func setupVisitorViewInfo(imageName: String, message: String){
    
        //设置转轮的图片
        iconView.image = UIImage(named: imageName)
        
        //设置消息内容
        messageLabel.text = message
        
        //隐藏小房子
        homeView.hidden = true
        
        //隐藏遮盖
        coverView.hidden = true
        
        //将一个view弄到最底部
//        self.sendSubviewToBack(coverView)
        
        //将一个view弄到最前面
//        self.bringSubviewToFront(coverView)
    }
    
    
    //准备
    private func prepareUI(){
    
        //1. 添加控件
        addSubview(iconView)
        addSubview(coverView)
        addSubview(homeView)
        addSubview(messageLabel)
        addSubview(registerButton)
        addSubview(loginButton)
        
        //禁用Autoresizing
        iconView.translatesAutoresizingMaskIntoConstraints = false
        coverView.translatesAutoresizingMaskIntoConstraints = false
        homeView.translatesAutoresizingMaskIntoConstraints = false
        messageLabel.translatesAutoresizingMaskIntoConstraints = false
        registerButton.translatesAutoresizingMaskIntoConstraints = false
        loginButton.translatesAutoresizingMaskIntoConstraints = false
        
        //2. 添加约束
        //约束都往父控件添加
        // item: 要约束的view
        // attribute: 要约束的view的什么属性
        // relatedBy: 参照关系
        // toItem: 要参照的view
        // attribute: 参照的view的什么属性
        
        // 将约束添加到父控件身上
        
        // 转轮
        self.addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        self.addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: -40))
        
        // 遮盖
        addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Top, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        
        // 房子
        addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: 0))
        
        // 消息label
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        //当参照的view为nil时,attribute必须设置为NSLayoutAttribute.NotAnAttribute
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 250))
        
        //注册按钮
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 100))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 35))
        
        //登录按钮
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Top, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Width, multiplier: 1, constant: 0))
        
    }
    
    // MARK: -按钮点击事件
    // 注册按钮点击事件
    @objc private func didClickRegisterButton(){
    
        //调用代理的协议方法
        delegate?.visitorViewDidClickRegisterButton(visitorView: self)
    }
    
    // 登录按钮点击事件
    @objc private func didClickLoginButton(){
    
        //调用代理的协议方法
        delegate?.visitorViewDidClickLoginButton(visitorView: self)
    }
    
    // MARK: -懒加载
    //转轮
    private lazy var iconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    
    //遮盖
    private lazy var coverView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    
    //小房子
    private lazy var homeView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    
    //消息文字
    private lazy var messageLabel: UILabel = {
    
        let label = UILabel()
        
        //设置
        label.text = "关注一些人!看看有神马惊喜"
        label.font = UIFont.systemFontOfSize(18)
        label.numberOfLines = 0
        label.textAlignment = NSTextAlignment.Center
        
        return label
    }()
    
    //注册按钮
    private lazy var registerButton: UIButton = {
    
        let button = UIButton()
        
        button.setTitle("注册", forState: UIControlState.Normal)
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        button.setTitleColor(UIColor.orangeColor(), forState: UIControlState.Normal)
        
        button.addTarget(self, action: Selector("didClickRegisterButton"), forControlEvents: UIControlEvents.TouchUpInside)
        
        return button
        
    }()
    
    //登录按钮
    private lazy var loginButton: UIButton = {
    
        let button = UIButton()
        //设置
        button.setTitle("登录", forState: UIControlState.Normal)
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        button.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)
        
        button.addTarget(self, action: Selector("didClickLoginButton"), forControlEvents: UIControlEvents.TouchUpInside)
        
        return button
    }()
}
